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What is the difference between exit(0) and exit(1) in C?
...tion status from a C program.
0 and EXIT_SUCCESS are the values specified by the standard to indicate successful termination, however, only EXIT_FAILURE is the standard value for returning unsucessful termination. 1 is used for the same in many implementations though.
Reference:
C99 Standar...
How to prevent errno 32 broken pipe?
...need to handle the case where a client disconnects before you're finished, by handling the exception.
Remember that TCP communications are asynchronous, but this is much more obvious on physically remote connections than on local ones, so conditions like this can be hard to reproduce on a local wor...
How can I use different certificates on specific connections?
...
All this code does is replicate what you can accomplish by setting three system properties described in the JSSE Refernence Guide.
– Marquis of Lorne
May 31 '12 at 19:36
...
IBOutlet and IBAction
...ne a button and label in IB. To dynamically change the value of the label by pushing the button, you will define an action and property in your app similar to:
UILabel IBOutlet *myLabel;
- (IBAction)pushme:(id)sender;
Then in IB you would connect myLabel with the label and connect the pushme met...
What are the best practices for JavaScript error handling?
... code may fail (because there is no other way to check that it should work by if...then... blocks)
And also when you want to debug without bothering the final user
Eventually, javascript experts may have other elements to give.
my 2 cents to the box,
Regards,
Max
...
Why is my Git Submodule HEAD detached from master?
...k submodules branch.
Solution: Make your submodule track its remote branch by adding new submodules with the following two commands.
First you tell git to track your remote <branch>.
you tell git to perform rebase or merge instead of checkout
you tell git to update your submodule from remote...
Why are functions and methods in PHP case-insensitive?
...lity.
And, for variables (quoting):
Variables in PHP are represented by a
dollar sign followed by the name of
the variable. The variable name is
case-sensitive.
And object properties are not much more than variables in objects -- same remark about PHP 4 and backward-compatibility.
...
PostgreSQL: Can you create an index in the CREATE TABLE definition?
...reSQL does however create an index for unique constraints and primary keys by default, as described in this note:
PostgreSQL automatically creates an index for each unique constraint and primary key constraint to enforce uniqueness.
Other than that, if you want a non-unique index, you will nee...
How to copy from current position to the end of line in vi
...o copy/paste between different instances, you can use the system clipboard by selecting the * register, so the commands become "*y$ for copying and "*p for pasting.
$ move-to-linebreak
$
y$ yank-to-linebreak
y,$
"*y$ select clipboard-register yank-to-linebreak
",*,y,$
"*p select clipboard-reg...
API Versioning for Rails Routes
...trollers here will be inside the V1 module inside the Api module: Api::V1. By defining resources :users inside this route, the controller will be located at Api::V1::UsersController. This is version 1, and you get there by making requests like /api/v1/users.
Version 2 is only a tiny bit different. ...